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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        // 1.toString
        let arr = ['张飞', 1, 2, 3, '你好'];
        let temp = arr.toString();
        console.log(temp);
        // 2. join(分隔符)
        console.log(arr.join());
        console.log(arr.join('-'));
    </script>
</body>

</html>